Have you ever had a close look at a record and wondered how that tiny groove can result in the sound you hear through your stereo speakers? In many ways, it seems like witchcraft, but it is of course good old analogue science.
While the basic idea goes back almost 150 years, to Edison’s phonograph, the record as we now know it is more like half that age. Columbia Records launched the first 12-inch LP in 1948, with the first public demonstration taking place on June 20th at the Waldorf-Astoria Hotel, New York. The rest, as they say, is history.
